Results 231 to 240 of about 576,528 (285)

Rapid and Stereoselective Ring‐Opening Polymerization of rac‐Lactide Enabled by a Chiral Cyclopropenimine–Thiourea Catalyst

Angewandte Chemie, EarlyView.
Chiral cyclopropenimine–thiourea organocatalysts enabled both high reactivity and precise stereocontrol in the ring‐opening polymerization of rac‐lactide. The bifunctional system exhibited a TOF up to 1,710 h−1 with Pm = 0.90 at 25°C, and achieved Pm = 0.99 at −78°C while maintaining a TOF of 16.3 h−1.
Sumin Lee, Hooseung Lee, Hyeongwoo Nam, Seungyun Jo, Minseong Kim, Dongwook Kim, Du Yeol Ryu, Sarah Yunmi Lee, Byeong‐Su Kim   +8 more
wiley   +1 more source

Enhancing reservoir characterization in the Temsah gas field through high-resolution seismic analysis and three-dimensional modeling. [PDF]

Sci Rep
Reda M, El-Gendy NH, Abdel-Fattah MI, Elmashaly MM, Barakat MK.   +4 more
europepmc   +1 more source

One‐Dimensional Polycyclic Aromatic Hydrocarbons Incorporating Multiple Dithiafulvene Units—Novel Multi‐Redox and Electrochromic Systems

Angewandte Chemie, EarlyView.
Planar polycyclic aromatic hydrocarbons (PAHs) incorporating three or four dithiafulvene (DTF) units were synthesized via Horner–Wadsworth–Emmons reactions to create large π‐conjugated redox‐active frameworks. These molecules display strong intermolecular associations and distinct odd–even redox behavior, enabling formation of mixed‐valence and radical‐
Cecilie Rindom, Florim Seljmani, Lukas Bradley Woodcock, Mogens Brøndsted Nielsen   +3 more
wiley   +1 more source

From Methane to Nanodiamond Precursors in Water: Superacid-like Condensation Pathways Under Extreme Conditions. [PDF]

Angew Chem Int Ed Engl
Thévenet T, Dian A, Cioni M, Markovits A, Scandolo S, France-Lanord A, Siro Brigiano F.   +6 more
europepmc   +1 more source

Regiodivergent C3 and C4 Amination of Quinolines via Radical and Ionic Pathways

Angewandte Chemie, EarlyView.
A regiodivergent strategy converts a single N‐aminoquinolinium precursor into either C3‐ or C4‐aminated quinolines. Nucleophile‐induced dearomatization diverges into light‐driven N‐centered radical capture (C3) or base‐promoted SNAr (C4), enabling rapid assembly of aminoquinoline libraries and late‐stage diversification.
Ye‐Eun Kim, Jieun Kim, Juyeon Lee, Sungwoo Hong   +3 more
wiley   +1 more source

Whole genome of petroleum hydrocarbon degrading Rhodococcus indonesiensis isolated from Nacharam, Hyderabad, India. [PDF]

Sci Rep
Zaman SAU, Sharma K, Nayarisseri A, Khazanehdari KA, Bhuyan R.   +4 more
europepmc   +1 more source

Integrating 3D structural modelling and seismic interpretation to optimize hydrocarbon development in the Early Miocene Nukhul Formation, October Oil Field, Gulf of Suez, Egypt. [PDF]

Sci Rep
Khattab MA, Radwan AE, El-Anbaawy MI, El-Tehiwy AA.   +3 more
europepmc   +1 more source

Thermal cracking for upgrading medium-low maturity shale oil: evolution of organic matter occurrence. [PDF]

Sci Rep
Jinmei B, Kun Q, Xiaojun W, Xiangji D, Yanfeng H.   +4 more
europepmc   +1 more source

Analysis and optimization of the J-T valve control logic for offshore oil and gas field low-temperature separators based on K-Spice. [PDF]

Sci Rep
Liu Y, Lin F, Zhu G, Yao Z.
europepmc   +1 more source